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32 * @(#)raw_usrreq.c 8.1 (Berkeley) 6/10/93
36 #include <sys/param.h>
37 #include <sys/kernel.h>
39 #include <sys/malloc.h>
41 #include <sys/mutex.h>
43 #include <sys/protosw.h>
44 #include <sys/signalvar.h>
45 #include <sys/socket.h>
46 #include <sys/socketvar.h>
48 #include <sys/systm.h>
52 #include <net/raw_cb.h>
54 MTX_SYSINIT(rawcb_mtx, &rawcb_mtx, "rawcb", MTX_DEF);
57 * Initialize raw connection block q.
63 LIST_INIT(&V_rawcb_list);
67 * Raw protocol input routine. Find the socket associated with the packet(s)
68 * and move them over. If nothing exists for this packet, drop it.
71 * Raw protocol interface.
74 raw_input(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src)
77 return (raw_input_ext(m0, proto, src, NULL));
81 raw_input_ext(struct mbuf *m0, struct sockproto *proto, struct sockaddr *src,
90 LIST_FOREACH(rp, &V_rawcb_list, list) {
91 if (rp->rcb_proto.sp_family != proto->sp_family)
93 if (rp->rcb_proto.sp_protocol &&
94 rp->rcb_proto.sp_protocol != proto->sp_protocol)
96 if (cb != NULL && (*cb)(m, proto, src, rp) != 0)
100 n = m_copym(m, 0, M_COPYALL, M_NOWAIT);
102 if (sbappendaddr(&last->so_rcv, src,
103 n, (struct mbuf *)0) == 0) {
110 last = rp->rcb_socket;
113 if (sbappendaddr(&last->so_rcv, src,
114 m, (struct mbuf *)0) == 0) {
121 mtx_unlock(&rawcb_mtx);
126 raw_ctlinput(int cmd, struct sockaddr *arg, void *dummy)
129 if (cmd < 0 || cmd >= PRC_NCMDS)
135 raw_uabort(struct socket *so)
138 KASSERT(sotorawcb(so) != NULL, ("raw_uabort: rp == NULL"));
140 soisdisconnected(so);
144 raw_uclose(struct socket *so)
147 KASSERT(sotorawcb(so) != NULL, ("raw_uabort: rp == NULL"));
149 soisdisconnected(so);
152 /* pru_accept is EOPNOTSUPP */
155 raw_uattach(struct socket *so, int proto, struct thread *td)
160 * Implementors of raw sockets will already have allocated the PCB,
161 * so it must be non-NULL here.
163 KASSERT(sotorawcb(so) != NULL, ("raw_uattach: so_pcb == NULL"));
166 error = priv_check(td, PRIV_NET_RAW);
170 return (raw_attach(so, proto));
174 raw_ubind(struct socket *so, struct sockaddr *nam, struct thread *td)
181 raw_uconnect(struct socket *so, struct sockaddr *nam, struct thread *td)
187 /* pru_connect2 is EOPNOTSUPP */
188 /* pru_control is EOPNOTSUPP */
191 raw_udetach(struct socket *so)
193 struct rawcb *rp = sotorawcb(so);
195 KASSERT(rp != NULL, ("raw_udetach: rp == NULL"));
201 raw_udisconnect(struct socket *so)
204 KASSERT(sotorawcb(so) != NULL, ("raw_udisconnect: rp == NULL"));
209 /* pru_listen is EOPNOTSUPP */
212 raw_upeeraddr(struct socket *so, struct sockaddr **nam)
215 KASSERT(sotorawcb(so) != NULL, ("raw_upeeraddr: rp == NULL"));
220 /* pru_rcvd is EOPNOTSUPP */
221 /* pru_rcvoob is EOPNOTSUPP */
224 raw_usend(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam,
225 struct mbuf *control, struct thread *td)
228 KASSERT(sotorawcb(so) != NULL, ("raw_usend: rp == NULL"));
230 if ((flags & PRUS_OOB) || (control && control->m_len)) {
239 * For historical (bad?) reasons, we effectively ignore the address
240 * argument to sendto(2). Perhaps we should return an error instead?
242 return ((*so->so_proto->pr_output)(m, so));
245 /* pru_sense is null */
248 raw_ushutdown(struct socket *so)
251 KASSERT(sotorawcb(so) != NULL, ("raw_ushutdown: rp == NULL"));
258 raw_usockaddr(struct socket *so, struct sockaddr **nam)
261 KASSERT(sotorawcb(so) != NULL, ("raw_usockaddr: rp == NULL"));
266 struct pr_usrreqs raw_usrreqs = {
267 .pru_abort = raw_uabort,
268 .pru_attach = raw_uattach,
269 .pru_bind = raw_ubind,
270 .pru_connect = raw_uconnect,
271 .pru_detach = raw_udetach,
272 .pru_disconnect = raw_udisconnect,
273 .pru_peeraddr = raw_upeeraddr,
274 .pru_send = raw_usend,
275 .pru_shutdown = raw_ushutdown,
276 .pru_sockaddr = raw_usockaddr,
277 .pru_close = raw_uclose,